-ic a-a a-b a-c a-i aaa aab aac aah aai aap aar ab- aba abb abc abh abi abp abr ac- aca acb acc ach aci acp acr aha ahb ahc ahh ahi ahp ahr ai- aia aib aic aih aii aip air ap- apa apb apc aph api app apr ar- ara arb arc arh ari arp arr b-p baa bab bac bah bai bap bar bba bbb bbc bbh bbi bbp bbr bca bcb bcc bch bci bcp bcr bha bhb bhc bhh bhi bhp bhr bi- bia bib bic bih bii bip bir bpa bpb bpc bph bpi bpp bpr bra brb brh bri brp brr c-- caa cab cac cah cai cap car cba cbb cbc cbh cbi cbp cbr cca ccb ccc cch cci ccp ccr ch- cha chb chc chh chi chp chr ci- cia cib cic cih cii cip cir cpa cpb cpc cph cpi cpp cpr cra crb crc crh cri crp crr h-i haa hab hac hah hai hap har hba hbb hbc hbh hbi hbp hbr hca hcb hcc hch hci hcp hcr hha hhb hhc hhh hhi hhp hhr hia hib hic hih hii hip hir hpa hpb hpc hph hpi hpp hpr hr- hra hrb hrc hrh hri hrp hrr ia- iaa iab iac iah iai iap iar iba ibb ibc ibh ibi ibp ibr ica icb icc ich ici icp icr iha ihb ihc ihh ihi ihp ihr iia iib iic iih iii iip iir ipa ipb ipc ipi ipp ipr ir- ira irb irc iri irp irr p-p paa pab pac pah pai pap par pba pbb pbc pbi pbp pbr pca pcb pcc pch pci pcp pcr pha phb phc phi php phr pia pib pic pih pii pip pir ppa ppb ppc pph ppi ppp ppr pra prb prc prh pri prp prr ra- raa rab rac rah rai rap rar rba rbb rbc rbh rbi rbp rbr rca rcb rcc rch rci rcp rcr rh- rha rhb rhc rhh rhi rhp rhr ria rib ric rih rii rip rir rpa rpb rpc rph rpi rpp rpr rra rrb rrc rrh rri rrp rrr